2580171345 has 24 divisors (see below), whose sum is σ = 4735374696. Its totient is φ = 1295144448.

The previous prime is 2580171343. The next prime is 2580171353. The reversal of 2580171345 is 5431710852.

2580171345 is a `hidden beast` number, since 2 + 580 + 1 + 71 + 3 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 109683729 + 2470487616 = 10473^2 + 49704^2 .

It is not a de Polignac number, because 2580171345 - 2¹ = 2580171343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2580171343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1685622 + ... + 1687151.

It is an arithmetic number, because the mean of its divisors is an integer number (197307279).

Almost surely, 2^2580171345 is an apocalyptic number.

It is an amenable number.

2580171345 is a deficient number, since it is larger than the sum of its proper divisors (2155203351).

2580171345 is a wasteful number, since it uses less digits than its factorization.

2580171345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3372801 (or 3372798 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 2580171345 is about 50795.3870444945. The cubic root of 2580171345 is about 1371.5643318682.

The spelling of 2580171345 in words is "two billion, five hundred eighty million, one hundred seventy-one thousand, three hundred forty-five".